Home / 1,929.87-2,663.22-1,045.67

Finding the Fourth Proportional to 1,929.87, 2,663.22 and 1,045.67

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Solution

The fourth proportional to 1,929.87, 2,663.22 and 1,045.67 is: 1,443.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,929.87 : 2,663.22 = 1,045.67 : x
  2. Step 2: Convert to fraction form
    1,929.87/2,663.22 = 1,045.67/x
  3. Step 3: Cross multiply
    1,929.87x = 2,663.22 × 1,045.67
  4. Step 4: Simplify right side
    1,929.87x = 2,784,846.38
  5. Step 5: Solve for x
    x = 2,784,846.38/1,929.87
  6. Step 6: Final answer
    x = 1,443.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.